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01-02-2016 | Original Article

Upregulation of HOXB7 promotes the tumorigenesis and progression of gastric cancer and correlates with clinical characteristics

Authors: Jia-qin Cai, Xiao-wu Xu, Yi-Ping Mou, Ke Chen, Yu Pan, Di Wu

Published in: Tumor Biology | Issue 2/2016

Abstract

Several examples of aberrant homeobox gene expression have been found across a range of cancers, and it is also confirmed that homeobox genes play a critical roles in tumorigenesis and progression. Notwithstanding homeobox B7 (HOXB7) has been documented that its deregulation promotes carcinogenesis and development in gastrointestinal tract, its function in gastric cancer has not been investigated. In this study, HOXB7 expression was examined to be distinctly upregulated in gastric carcinoma GC cell lines and in the tumor relative to normal gastric tissue. High HOXB7 expression was correlated with tumor differentiation (P = 0.025) and TNM stage (P = 0.008). HOXB7 knockdown in BGC-823 and SGC-7901 resulted in decreased migration and invasion with alteration of epithelial-mesenchymal transition (EMT) proteins and influenced proliferation, apoptosis, and cell cycle. Furthermore, complementary DNA (cDNA) microarray, qPCR, and Western blotting were performed to explore potential downstream target genes of HOXB7. HOXB7 is generally overexpressed in GC, associated with patient clinical characteristics, and specifically promotes GC cell malignant biological properties through PIK3R3/AKT signaling pathways, indicating HOXB7 as a causal factor in promoting tumor progression.

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Title: Upregulation of HOXB7 promotes the tumorigenesis and progression of gastric cancer and correlates with clinical characteristics
Authors: Jia-qin Cai
Xiao-wu Xu
Yi-Ping Mou
Ke Chen
Yu Pan
Di Wu
Publication date: 01-02-2016
Publisher: Springer Netherlands
Published in: Tumor Biology / Issue 2/2016
Print ISSN: 1010-4283
Electronic ISSN: 1423-0380
DOI: https://doi.org/10.1007/s13277-015-3948-3

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